If the threat is not valid then why cause panic and fear? Just beef up security and let the NFL cities know, I don't see why they are making it public.
This may turn out to be nothing, but I do recall seeing on a CNN or Fox scroll three or four years ago that the Army found a computer containing plans for NFL Stadiums in Afganistan...
Simple. To keep the candy@ssed sissies away from the games.
"I don't see why they are making it public."
That's a no brainer. Attendees should have the choice of going or staying at home. I would not take a grandchild to one of those games. I might go alone.
Who leaked HS warnings to law enforcement?
We can't keep classified info from the CIA out of the media. How do you think the NFL cities could be notified and keep it from going public?